161715-20-4

Basic information

• Product Name: 4-Nitrobenzyl(1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-Methyl-2-[1-(1,3-thiazolin-2-yl)azetidin -3-yl]thio-1-carbapen-2-eM-3-carboxylate
• Synonyms: 4-Nitrobenzyl(1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-Methyl-2-[1-(1,3-thiazolin-2-yl)azetidin -3-yl]thio-1-carbapen-2-eM-3-carboxylate;(4R,5S,6S)-3-[[1-(4,5-Dihydro-2-thiazolyl)-3-azetidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid (4-nitrophenyl)methyl ester;TebipeneM Condensation CoMpound;Tebipenem Impurity 4;(4R,5S,6S)-4-nitrobenzyl 3-((1-(4,5-dihydrothiazol-2-yl)azetidin-3-yl)thio)-6-((R)-1-hydroxyethyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate;(1R,5S,6S)-2-((1-(4,5-Dihydrothiazol-2-yl)azetidin-3-yl)thio)-6-((R)-1-hydroxyethyl)-1-methyl-
• CAS NO: 161715-20-4
• Molecular Formula: C₂₃H₂₆N₄O₆S₂
• Molecular Weight: 516.60974
• EINECS: -0
• Mol File: 161715-20-4.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 741.4±70.0 °C(Predicted)
• Appearance: /
• Density: 1.63±0.1 g/cm3 (20 ºC 760 Torr)
• PKA: 14.36±0.20(Predicted)
• CAS DataBase Reference: 4-Nitrobenzyl(1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-Methyl-2-[1-(1,3-thiazolin-2-yl)azetidin -3-yl]thio-1-carbapen-2-eM-3-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Nitrobenzyl(1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-Methyl-2-[1-(1,3-thiazolin-2-yl)azetidin -3-yl]thio-1-carbapen-2-eM-3-carboxylate(161715-20-4)
• EPA Substance Registry System: 4-Nitrobenzyl(1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-Methyl-2-[1-(1,3-thiazolin-2-yl)azetidin -3-yl]thio-1-carbapen-2-eM-3-carboxylate(161715-20-4)

Safety Data

• Hazardous Substances Data: 161715-20-4(Hazardous Substances Data)

Usage

Uses

(4-Nitrophenyl)methyl Tebipenem is an intermediate in the synthesis of Tebipenem Tetrahydrate (T012840), the active metabolite of Tebipenem Pivoxil (T012900) and shows excellent bactericidal activity against β-lactamase-nonproducing, ampicillin-resistant isolates.

Synthetic route

(4-nitrophenyl)methyl (4R,5R,6S)-3-[(diphenoxyphosphinyl)oxy]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate (93711-81-0, 90776-59-3) + 1-(4,5-dihydro-1,3-thiazol-2-yl)-3-mercaptoazetidine hydrochloride → (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4)

Conditions	Yield
With N-ethyl-N,N-diisopropylamine; acetonitrile at -20℃; for 2h;	94%
With N-ethyl-N,N-diisopropylamine at -20℃; for 3.5h; Temperature;	88.5%
With N-ethyl-N,N-diisopropylamine In acetonitrile

3-methanesulfonyloxy-1-(1,3-thiazolin-2-yl)azetidine (179337-62-3) → (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4)

Conditions	Yield
Multi-step reaction with 3 steps 1.1: 88 percent / potassium thioacetate / dimethylformamide / 5.5 h / 100 °C 2.1: KOH / propan-2-ol; methanol / 0.17 h / 5 °C 2.2: 87 percent / HCl / propan-2-ol; methanol / 15 h / 5 °C 3.1: 94 percent / diisopropyl ethylamine; MeCN / 2 h / -20 °C View Scheme

1-(1,3-thiazolin-2-yl-)azetidin-3-ol (161715-27-1) → (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4)

Conditions	Yield
Multi-step reaction with 4 steps 1.1: 93 percent / DMAP; Et3N / tetrahydrofuran / 0.5 h / 5 °C 2.1: 88 percent / potassium thioacetate / dimethylformamide / 5.5 h / 100 °C 3.1: KOH / propan-2-ol; methanol / 0.17 h / 5 °C 3.2: 87 percent / HCl / propan-2-ol; methanol / 15 h / 5 °C 4.1: 94 percent / diisopropyl ethylamine; MeCN / 2 h / -20 °C View Scheme

3-acetylthio-1-(1,3-thiazolin-2-yl)azetidine (161715-28-2) → (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4)

Conditions	Yield
Multi-step reaction with 2 steps 1.1: KOH / propan-2-ol; methanol / 0.17 h / 5 °C 1.2: 87 percent / HCl / propan-2-ol; methanol / 15 h / 5 °C 2.1: 94 percent / diisopropyl ethylamine; MeCN / 2 h / -20 °C View Scheme

(+)-(4R,5R,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-(diphenylphosphoryloxy)-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester + 1-(4,5-dihydro-1,3-thiazol-2-yl)-3-mercaptoazetidine hydrochloride → (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4)

Conditions	Yield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 0℃; for 4h;

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → (4R,5S,6S)-3-{[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid (161715-21-5)

Conditions	Yield
With hydrogen In water; butan-1-ol at 20℃; under 15001.5 Torr; for 4h; Solvent; Pressure; Reagent/catalyst;	94.5%
With 0.5% Pd/C; hydrogen; sodium hydrogencarbonate In water; butan-1-ol at 25 - 30℃; under 7500.75 Torr; for 3h; Reagent/catalyst;	89.3%
With sodium hydrogencarbonate; palladium on activated charcoal In water; butan-1-ol at 20℃; under 3000.24 Torr; for 1.5h;	82%

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 5-methyl-2-oxo-[1,3]dioxol-4-ylmethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 54 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 3-oxo-1,3-dihydro-isobenzofuran-1-yl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 84 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-methyl-benzoyloxymethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 84 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-chloro-benzoyloxymethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 81 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid cyclohexanecarbonyloxymethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 71 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-methyl-cyclohexanecarbonyloxymethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 80 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 1-cyclohexyloxycarbonyloxy-ethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 82 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 1-methyl-cyclohexanecarbonyloxymethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 88 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → 3-[1-(4,5-dihydro-thiazol-2-yl)-azetidin-3-ylsulfanyl]-6-(1-hydroxy-ethyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid cyclohexylacetoxymethyl ester

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 76 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → L-084

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / sodium hydrogen carbonate / Pd-C / butan-1-ol; H2O / 1.5 h / 20 °C / 3000.24 Torr 2: 78 percent / benzyltriethylammonium chloride; diisopropylethylamine / dimethylformamide / 4 h / 45 °C View Scheme
Multi-step reaction with 3 steps 1.1: 0.5% Pd/C; sodium hydrogencarbonate; hydrogen / butan-1-ol; water / 3 h / 25 - 30 °C / 7500.75 Torr 2.1: N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 1 h / 35 °C 2.2: 7 - 8 °C 3.1: sodium hydrogencarbonate / water; ethyl acetate / 2.5 h View Scheme

(+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-{[1-(2-thiazolin-2-yl)-3-azetidinyl]mercapto}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester (161715-20-4) → C22H31N3O6S2*ClH

Conditions	Yield
Multi-step reaction with 2 steps 1.1: 0.5% Pd/C; sodium hydrogencarbonate; hydrogen / butan-1-ol; water / 3 h / 25 - 30 °C / 7500.75 Torr 2.1: N-benzyl-N,N,N-triethylammonium chloride; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 1 h / 35 °C 2.2: 7 - 8 °C View Scheme

Upstream product

• 93711-81-0 (4-nitrophenyl)methyl (4R,5R,6S)-3-[(diphenoxyphosphinyl)oxy]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate 
• 179337-57-6 1-(4,5-dihydro-1,3-thiazol-2-yl)-3-mercaptoazetidine hydrochloride 
• 179337-62-3 3-methanesulfonyloxy-1-(1,3-thiazolin-2-yl)azetidine 
• 161715-27-1 1-(1,3-thiazolin-2-yl-)azetidin-3-ol 
• 161715-28-2 3-acetylthio-1-(1,3-thiazolin-2-yl)azetidine 

Downstream Products

• 161715-21-5 Tebipenem 
• 161715-24-8 tebipenem 

Relevant articles and documents

Syntheses and pharmacokinetic studies of prodrug esters for the development of oral carbapenem, L-084

We discovered an orally active carbapenem, L-084, through pharmacokinetic studies on various prodrug esters of (1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-methyl- 2-[1-(1,3-thiazolin-2-yl)azetidin-3-yl]thio-1-carbapen-2-em-3-carboxylic acid (LJC11,036). L-084 showed a strong antimicrobial activity against Gram-positive and Gram-negative bacteria and exhibited the highest intestinal absorption among synthesized prodrugs of LJC11,036. Japan Antibiotics Research Association.

Preparation method of high-purity tebipenem pivoxil crystals

The invention discloses a preparation method of high-purity tebipenem pivoxil crystals. The method comprises the following steps: adding a first solvent to crude tebipenem pivoxil, and performing stirring to obtain a primary dissolved product; adding a second solvent dropwise to the primary dissolved product at a reaction temperature, and then performing stirring for crystallization, wherein the first solvent contains water; the second solvent is acetonitrile; the reaction temperature is 0-60 DEG C. The tebipenem pivoxil crystals with high purity and low solvent residue content can be preparedwith the method.